Breitling Navitimer B01 vs Orient Kamasu Automatic Diver
Breitling's chronograph meets Orient's diver
Quick Verdict
The Orient Kamasu Automatic Diver ($250–$500) delivers Orient In-House Automatic technology in the tier below the Breitling Navitimer B01 ($10,000–$25,000). The Kamasu Automatic Diver measures 41.8mm and is rated 200m (20 ATM). The Navitimer B01 justifies its premium with Swiss Made heritage and Automatic Breitling 01 (Manufacture). Both represent excellent choices in the luxury watch category.
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Specifications Compared
| Feature | Breitling Navitimer B01 | Orient Kamasu Automatic Diver |
|---|---|---|
| Price | $10,000–$25,000 | $250–$500 |
| Case Size | 43mm | 41.8mm |
| Movement | Automatic Breitling 01 (Manufacture) | Automatic Caliber F6922 |
| Caliber Type | In-House Automatic Chronograph Manufacture | Orient In-House Automatic |
| Power Reserve | 70 Hours | 40 Hours |
| Water Resistance | 30m (3 ATM) | 200m (20 ATM) |
| Crystal | Cambered Sapphire | Sapphire Crystal |
| Case Material | Stainless Steel | Stainless Steel |
| Origin | Swiss Made | Made in Japan |
Category-by-Category Analysis
Design & Aesthetics
Breitling's design language vs Orient's approach
The Breitling Navitimer B01 features a Stainless Steel case at 43mm with Cambered Sapphire protection. The Orient Kamasu Automatic Diver offers Stainless Steel construction at 41.8mm with Sapphire Crystal. Both represent their brand's distinct design philosophy and heritage.
Movement & Performance
Automatic Breitling 01 (Manufacture) vs Automatic Caliber F6922
The Navitimer B01 runs the Automatic Breitling 01 (Manufacture) (In-House Automatic Chronograph Manufacture, 70 Hours power reserve) at 28,800 vph (4 Hz) frequency. The Kamasu Automatic Diver uses the Automatic Caliber F6922 (Orient In-House Automatic, 40 Hours reserve) at 21,600 vph (3 Hz). The Navitimer B01 edges ahead on power reserve.
Wearability & Fit
43mm vs 41.8mm — different wrist presence
At 43mm, the Navitimer B01 has a bolder wrist presence compared to the Kamasu Automatic Diver at 41.8mm. Water resistance differs: 30m (3 ATM) vs 200m (20 ATM).
Value & Cost of Ownership
Orient sits in the lower tier
The Breitling Navitimer B01 sits at $10,000–$25,000 and the Orient Kamasu Automatic Diver at $250–$500. On the specs that outlast any price: the Navitimer B01 uses Cambered Sapphire with 70 Hours, against Sapphire Crystal and 40 Hours on the Kamasu Automatic Diver. Service intervals are typically 5-7 years for both.
Water Resistance
30m (3 ATM) vs 200m (20 ATM)
The Navitimer B01 is rated to 30m (3 ATM) while the Kamasu Automatic Diver handles 200m (20 ATM). The Kamasu Automatic Diver offers superior water resistance.
Our Verdict
Breitling
Navitimer B01
Choose the Breitling Navitimer B01 if you prioritize In-House Automatic Chronograph Manufacture engineering, Swiss Made craftsmanship, and 30m (3 ATM) water resistance. At $10,000–$25,000, it delivers Automatic Breitling 01 (Manufacture) with 70 Hours power reserve.
Check Price on AmazonOrient
Kamasu Automatic Diver
Choose the Orient Kamasu Automatic Diver if you value Orient In-House Automatic technology, Made in Japan heritage, and 41.8mm proportions. At $250–$500, the Automatic Caliber F6922 with 40 Hours power reserve makes it a compelling choice.
Check Price on AmazonThe Bottom Line
The Breitling Navitimer B01 and Orient Kamasu Automatic Diver represent two distinct approaches to fine watchmaking — the Breitling bringing Swiss Made tradition while Orient delivers Made in Japan engineering.
Frequently Asked Questions
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How This Page Was Made
Our comparisons are generated from a hand-maintained specification database and reviewed under our editorial standards. We use AI tools to assemble pages from that data. We don’t invent specs: every number traces back to the database, and when we correct an entry, the fix is applied site-wide. As an Amazon Associate, The Horologist earns from qualifying purchases.